Vehicle wheel rim



C L 11, 1932. -g w KRANZ 1,881,690

VEHICLE WHEEL RIM Filed June l6 1950 INVENTOR. HARRY W. KRANZ A TTORNEYPatented Oct. 11, 1932 UNITED STATES PATENT OFFICE EIARRY W. KRANZ, OFIAKEWQOID, CHIC, ASSIGNOE T TEE CLEVELAND WELIDING:

CO. OF CLEVELAND, OI-IIO, A. GORPORA'IION DIE OHIO 'VEHICLE WHEEL RIMAppllcati on' filed Inne 16,

This invention, re1ating as indicated, t0 Veh1cle wheel ums, has spemficreference t0 so-cal'led demountable rims' and more especially t0 rimswhich are split transversely the 'tires carried thereby.

Considerable difliculty has been experienced in the past in theconstruction 015 C transversely split demountable rims in thatthesplitting cf the rim results in a weakened structure Which, un1essguarded 01' suitably supported, Will cause such rim to be def0rmedduring use. One method of Supportfing the rim in the split area so as'00 aflord a suitable backing therebf, has been t0 have One cf Eherim-retaining 1ugs engage the opposite ends cf the rim at the point cfseparat-ion so that such 1ug Will aflord a substantial abutment forthe-adja0ent ends cf the split and thereby prevent any deformation cfthe rim due to such sp1it The employment of lugs, er more specifically asingle lug, which engages the rim 011 opposite sides cf the split, hasthe tendency hcweverupon a tightening of the lug-securingbolts 01 nuts,to effect an excessivclateral moven'1ent cf the s1lit section of the rimrelative t0 t-he fe1ly, sothat the ends cf the rim 011 that sideopposite the lug werespread apart presenting a gap cf greate'r 01' lesedegree to the tire and the tube.contained there- VVhen flaps are -usedin connection with tires when mounced on vehicle rimswhich haps areinterposed between the tubes and' ahe outer periphery cf the rim, theseparation cf thc rim at the splitcauses 'little trouble clue to thefact that such flaps are 0f .3 s ufficient strengt h 130 bridge such gapsatis- Iact-orily and prevent injury to the t-ube when inflated andduring the life cf the tire. Recent1y, however, 113 has been foundadvisable in connect-i0n with so-called drop 09111361" ri1ns, and thelike, to omit flaps in the tire, tube anti rim assembly for reasonswhich are so well knoWn that a reitcration ab this point is believedunnccessar'y. The omission cf the flap in the assembly places the baretubc in direct ccnt-act with the outer periphery cf the for the purpose0f collapsing the same 130 facilitate the mounting 'and demounting cf 1930. Serial N0. 461,400.

rim so that extreme care must be employed in climinating all possiblesources of damage t0 the fragile tube structure during the operation ofehe Wheel. The separation 0f the contiguous ends cf the rim in the splitareaf',

permits the tube, upon inflation, to be forcecl into such split so thatduring the running cf the ri1n and the incidental relative movement cfthe two ends, the tube, if permicted to be forced into the ga betweenthe adja-2- cent rim ends Will soon %ecome damaged to the point cffailure.

It is among theobjects cf this inventin to provide a means inassociation with transversely split demountable rims so that any meansconstituting, however, but one cf vari-" ous mechanical forms in Whichthe principle of the invention may be used.

In said annexed drawing: Fi 1 is a fragmentary sectional view of aspl1trim, fel1y and wheel structuretaken on a plane substantially at rightangles t0 the axis cf such wheel; Fig. 2 is a fragmentary sectional viewcf the structure illustrated in Fig. 1 taken on a plane substantiallyindicated by the line 22; Fig. 3 is a transverse sectional view cf thestructure illustrated in Fig. 2, taken on a plane substantiallyindicated by the linc 33; Fig. 4'is a fragmentary sectional view similarto Fig. 2, showing an alternative form of the structure comprising myinvention; and Fig. 5 is a transver'se sectiona'l view of the structureillustrated in F ig. 4 taken 011 a plane substantially indicated by theline 5-5.

Referring more specifically to the draw-

